Hello AAC forum,

Beginning in 2015 PIRs have been used in a variety of use cases, closets, staircases and
other home automation projects and circuits.

These are three of the circuits that were used in the beginning,




Recently a different type of motion sensor has been discovered, the Infineon BGT60LTR11AIP
BGT60LTR11AIP | XENSIV™ 60GHz first completely autonomous radar sensor for motion sensing - Infineon Technologies
The data sheet has been downloaded and carefully perused. The data sheet
has little technical info and is mostly marketing.
Does any one have technical info on the Infineon BGT60LTR11AIP?
Research has been done to find a simple circuit like the ones
copied above with no success.
Does any one have any experience with the Infineon BGT60LTR11AIP?
Is there a schematic for a simple circuit using the Infineon BGT60LTR11AIP?
Thanks.
Allen Pitts

 

Because a radar sensor is quite different from a PIR sensor the output will not be similar, unless it is a very simple radar sensor.
Isthere a description of the output? Voltage and protocol??

 

Hi Allen,
That sensor is designed to be used with an MCU and SPI communications, so an Arduino could be used to create a movement detection project similar to a PIR.
The simpler microwave detector, I use, gives an output Hi/Lo similar to a regular PIR module.

Are you able to program an Arduino?
E

BTW: what post #2 is all about, heaven only knows.!

So the circuit will be different, and undoubtedly WILL NOT involve an arduino.

 

OK, and certainly internal registers and a SPI interface are a lot different from the common PIR sensors that typically use a single LM324 quad opamp and a transistor to drive a relay for the output.
The capabilities are quite a lot more than a PIR sensor: "The MMIC has four quad-state input pins that give the performance parameters flexibility, even in this autonomous mode. The detection threshold or sensitivity has 16 different levels in order to fulfill a configurable detection range from 0.5 m up to 7 m with a typical human target Radar Cross Section (RCS). Hold time is also configurable in 16 levels in autonomous mode, which allows detection status to be held from 0.1 s up to 30 minutes."

So it is clear that depending on the details of the application there will need to be some external smart device required. What was not mentioned in the first link was if the configuration settings are retained after powering off. What is not clear is if image data is part of the possible output. That might require more computing power than an arduino can provide.
So it seems that the interface will depend on the application.